.practice{max-width: 800px;margin: 0 auto;border-top:#dbdcdd solid 1px;}
.practice .item h2{font-size: 18px;font-weight: normal;padding:20px 0 15px}
.practice .item h4{font-size: 16px;border-bottom:#babec2 solid 1px;padding-bottom: 10px;margin-top: 30px;}
.practice .item{display: none;}
.practice .item.active{display: block;}
.practice .item .select ul li{display: flex;border-bottom:#babec2 solid 1px;padding:16px 0;cursor: pointer;}
.practice .item .select ul li span{font-size: 16px;align-items: center;display: flex;}
.practice .item .select ul li .icon{border:#fff solid 2px;padding: 2px;height: 32px;line-height: 32px;box-sizing: border-box;border-radius: 100%;margin-right: 10px;}
.practice .item .select ul li .icon em{display: block;width: 24px;height: 24px;line-height: 20px;text-align: center;box-sizing: border-box;border:#717378 solid 2px;font-size: 14px;font-weight: bold;color: #717378;border-radius: 100%;}
.practice .item .select ul li:hover .icon{border:#1865f2 solid 2px}
.practice .item .select ul li.selected .icon em{background: #1865f2;color: #fff;border:#1865f2 solid 2px}
.practice .prompt{padding: 30px 0 0 0;font-weight: bold;}
.practice .prompt a{color: #1865f2;}
.content-footer .restart{font-size: 16px;align-items: center;display: flex;cursor: pointer;}
.content-footer .count{font-size: 16px;align-items: center;display: flex;padding:0 20px;font-weight: bold;}
.content-footer .round {display: flex;align-items: center;margin-right: 20px;}
.content-footer .round span{width:8px;height:8px;border:#909195 solid 2px;margin: 0 5px;border-radius: 100%;box-sizing: border-box;position: relative;}
.content-footer .round span.active{width: 12px;height: 12px;}
.content-footer .round span.yes{border:none}
.content-footer .round span.yes::before{content: '\e633';font-family: iconfont;color: #00a60e;position: absolute;top:-3px}
.content-footer .round span.active.yes::before{top:-2px}
.content-footer .detection{position: relative;}
.answer h4{padding:20px 0 10px;font-size: 16px;}
.answer p{font-size: 16px;}